It seems that the orbital inclination oscillations of all the planets in our solar system are not well published. I've done some simulation work on this but can't find many publications to check my findings against.
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The textbook "Solar System Dynamics" discusses orbital inclination oscillations by finding approximated analytical solutions. At least with them I could check my simulation results which seem to be fine. Ephemerides simulations are available but their valid time spans seem to be far too short for long term effects.